Home / 100,640.26-151,003.50-34,087.42

Finding the Fourth Proportional to 100,640.26, 151,003.50 and 34,087.42

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Solution

The fourth proportional to 100,640.26, 151,003.50 and 34,087.42 is: 51,145.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,640.26 : 151,003.50 = 34,087.42 : x
  2. Step 2: Convert to fraction form
    100,640.26/151,003.50 = 34,087.42/x
  3. Step 3: Cross multiply
    100,640.26x = 151,003.50 × 34,087.42
  4. Step 4: Simplify right side
    100,640.26x = 5,147,319,725.97
  5. Step 5: Solve for x
    x = 5,147,319,725.97/100,640.26
  6. Step 6: Final answer
    x = 51,145.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.